肺炎性假瘤是发生在肺实质内的假性肿瘤 ,常易误诊为真性肿瘤或其他病变。现将收集到的经手术病理证实的 16例肺炎性假瘤资料 ,从临床表现和病理方面进行分析 ,并对分型和误诊原因进行讨论。1　临床资料1.1　一般资料　本组 16例中 ,男 7例 ,女 9例 ,男女之比为 1∶1.3 ,年龄 1 Pneumothorax pseudotumor is a pseudo-tumor that occurs in the parenchyma of the lung, often misdiagnosed as a true tumor or other lesions. Sixteen cases of pneumonectatic pseudotumor confirmed by surgery and pathology were collected from the clinical and pathological aspects, and the reasons for the classification and misdiagnosis were discussed. 1 Clinical data 1.1 General Information The group of 16 patients, 7 males and 9 females, male to female ratio of 1: 1.3, age 1